Answer:
Bromine
Sodium
Explanation:
Bromine has a stronger electronegativity value, thus making it more able to attract electrons.
Sodium only has one valence electron (Cl has seven) so it's easier for sodium to give up it's one electron to obtain a noble gas configuration than it would be for it to find seven more electrons to add to it's shell.
Metals tend to lose electrons while nonmetals tend to gain electrons.
